Patents by Inventor Satoru Miyashita
Satoru Miyashita has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6839178Abstract: The invention provides a method of producing a transmissive screen having a structure including light-absorption-material patterns that are formed on locations corresponding to locations of lens members, which are provided side by side on a light-transmissive substrate, and to locations of boundary portions between the corresponding lens members. In this method, lens compositions are discharged onto and are caused to land on the light transmissive substrate, and, by drops of the lens compositions, very small lens members or precursors thereof are formed. It is possible to provide a method of producing a transmissive screen, which makes it possible to realize, at a low cost, a bright transmissive screen which has high contrast ratio and which can display a high-quality image having reduced or no moiré and reduced or no speckles.Type: GrantFiled: July 16, 2003Date of Patent: January 4, 2005Assignee: Seiko Epson CorporationInventors: Shoichi Uchiyama, Satoru Miyashita, Hiroshi Kiguchi, Hironori Hasei
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Patent number: 6833156Abstract: A method of manufacturing an organic EL element according to the present invention comprises the steps of forming pixel electrodes (801), (802), (803) on a transparent substrate (804) and forming on the pixel electrodes by patterning luminescent layers (806), (807), (808) made of an organic compound by means of an ink-jet method. According to this method, it is possible to carry out a high precise patterning easily and in a short time, thereby enabling to carry out optimization for a film design and luminescent characteristic easily as well as making it easy to adjust a luminous efficiency.Type: GrantFiled: October 24, 2001Date of Patent: December 21, 2004Assignee: Seiko Epson CorporationInventors: Satoru Miyashita, Hiroshi Kiguchi, Tatsuya Shimoda, Sadao Kanbe
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Patent number: 6821553Abstract: A method of manufacturing an organic EL element according to the present invention comprises the steps of forming pixel electrodes (801), (802), (803) on a transparent substrate (804) and forming on the pixel electrodes by patterning luminescent layers (806), (807), (808) made of an organic compound by means of an ink-jet method. According to this method, it is possible to carry out a high precise patterning easily and in a short time, thereby enabling to carry out optimization for a film design and luminescent characteristic easily as well as making it easy to adjust a luminous efficiency.Type: GrantFiled: June 12, 2002Date of Patent: November 23, 2004Assignee: Seiko Epson CorporationInventors: Satoru Miyashita, Hiroshi Kiguchi, Tatsuya Shimoda, Sadao Kanbe
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Patent number: 6805448Abstract: A projection display apparatus employing organic EL elements is presented that is light in weight, is small in size, and can be practically implemented. In particular, the apparatus suppresses light-emission performance degradation caused by generated heat, thereby extending useful life, stabilizing brightness, and securing continual maximum brightness. The apparatus comprises: liquid crystal panels 12R, 12G, and 12B; light emitting units 13R, 13G, and 13B, positioned at the back of the liquid crystal panels and provided with organic EL elements as light emitting layers; and cooling bodies 14R, 14G, and 14B, positioned at the back of the light emitting units, for dispersing the heat generated by the light emitting layers. The cooling bodies 14R, 14G, and 14B may, for example, be electronic cooling elements that employ the Peltier effect to absorb and radiate the generated heat. Alternatively, the cooling bodies may be configured as heat-dispersing fins that guide and disperse generated heat.Type: GrantFiled: May 27, 2003Date of Patent: October 19, 2004Assignee: Seiko Epson CorporationInventors: Osamu Yokoyama, Satoru Miyashita, Hiroshi Kamakura, Tatsuya Shimoda
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Patent number: 6742907Abstract: An illumination device is provided of the type arranged at the front which is of low power consumption and of high recognisability both when the illumination is turned on and when illumination is turned off. An illumination device arranged at the front face of an illuminated object has a light-guide plate forming a transparent flat plate shape and formed with point-form optical extraction structures on its surface or in a position facing this surface, and a light source arranged opposite and end face of this light-guide plate. The light source is for example a point light source. The optical extraction structures are for example pillar-shaped projections and these are arranged two-dimensionally. The function is provided that, when this illumination device is arranged at the front of the illuminated body, rays are projected on to the illuminated body and rays reflected by the illuminated body are transmitted with scarcely any dispersion.Type: GrantFiled: May 8, 2003Date of Patent: June 1, 2004Assignee: Seiko Epson CorporationInventors: Tatsuaki Funamoto, Osamu Yokoyama, Satoru Miyashita, Kanemitsu Kubota
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Patent number: 6741228Abstract: There is provided behind an optical modulation panel (101) which is not provided with a color filter a planar light source which is provided with EL elements (100R, 100G and 100B) with a built-in optical resonator structure adapted to emit light in red, green and blue and which are periodically arranged on a single glass substrate (103). Lights of different colors obtained by lighting the EL elements (100R, 100G and 100B) are modulated by an optical modulation panel (101) to obtain a color image.Type: GrantFiled: March 23, 2000Date of Patent: May 25, 2004Assignee: Seiko Epson CorporationInventors: Osamu Yokoyama, Tatsuya Shimoda, Satoru Miyashita
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Patent number: 6715523Abstract: A multi-piece rim includes a rim base including a first flange and a gutter band, a bead seat band including a second flange, a lock ring, and a first side ring located on a side of the first flange and a second side ring located on a side of the second flange. A circumferentially extending surface of the first flange and a tapered surface of a circumferentially extending inner surface of the first side ring and/or a circumferentially extending surface of the second flange and a tapered surface of a circumferentially extending inner surface of the second side ring are inclined radially outwardly in an axially outboard direction of the multi-piece rim, so that circumferential and radial slippage between rim members is prevented to suppress a fretting fatigue.Type: GrantFiled: November 4, 2002Date of Patent: April 6, 2004Assignee: Topy Kogyo Kabushiki KaishaInventors: Kentaro Oba, Satoru Miyashita, Ichiro Takeuchi
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Patent number: 6696785Abstract: An object is to efficiently manufacture an organic EL display which uses microstructures. Microstructures are inlaid in a plurality of concavities in the surface of a nonconductive multi-holed substrate. On the multi-holed substrate, besides the concavities there is formed a plurality of through holes. The surface of the multi-holed substrate is covered with a nonconductive protective film. A transparent substrate on the surface of which is formed beforehand a transparent electrode layer is prepared, and the transparent substrate is attached to the rear face side of the multi-holed substrate. Contact holes are formed after which a luminous layer is formed inside the through holes by an ink jet method. The surface of the multi-holed substrate including the inside of the contact holes is covered with a metallic layer such as aluminum, and the metallic layer is then patterned, and negative electrodes and wiring are formed.Type: GrantFiled: July 6, 2001Date of Patent: February 24, 2004Assignee: Seiko Epson CorporationInventors: Tatsuya Shimoda, Satoru Miyashita, Satoshi Inoue
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Publication number: 20040027545Abstract: A projection display apparatus employing organic EL elements is presented that is light in weight, is small in size, and can be practically implemented. In particular, the apparatus suppresses light-emission performance degradation caused by generated heat, thereby extending useful life, stabilizing brightness, and securing continual maximum brightness. The apparatus comprises: liquid crystal panels 12R, 12G, and 12B; light emitting units 13R, 13G, and 13B, positioned at the back of the liquid crystal panels and provided with organic EL elements as light emitting layers; and cooling bodies 14R, 14G, and 14B, positioned at the back of the light emitting units, for dispersing the heat generated by the light emitting layers. The cooling bodies 14R, 14G, and 14B may, for example, be electronic cooling elements that employ the Peltier effect to absorb and radiate the generated heat. Alternatively, the cooling bodies may be configured as heat-dispersing fine that guide and disperse generated heat.Type: ApplicationFiled: May 27, 2003Publication date: February 12, 2004Applicant: Seiko Epson CorporationInventors: Osamu Yokoyama, Satoru Miyashita, Hiroshi Kamakura, Tatsuya Shimoda
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Publication number: 20040017335Abstract: An organic EL apparatus comprising a substrate 2, a pair of electrodes 7 and 8 formed on the substrate 2, and a light emitting layer 5 disposed between the electrodes 7 and 8 is provided in order to implement a light emitting apparatus and an electronic device which decrease reflections in a display of the organic EL apparatus, and to improve display quality. The substrate 2 comprises a transparent substrate, the pair of the electrodes 7 and 8 is an anode 7 disposed on the light emitting layer 5 at the substrate 2 side, and a cathode 7 disposed on the light emitting layer 5 at an opposite side of the substrate 2. A semi-reflection film 1 is disposed near the anode 7. The semi-reflection film transmits a part of external light R0 incident on the organic EL apparatus from the substrate 2, and reflects a part of the light other than the light transmitted.Type: ApplicationFiled: April 23, 2003Publication date: January 29, 2004Applicant: Seiko Epson CorporationInventors: Hidekazu Kobayashi, Satoru Miyashita
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Publication number: 20040012857Abstract: The invention provides a method of producing a transmissive screen having a structure including light-absorption-material patterns that are formed on locations corresponding to locations of lens members, which are provided side by side on a light-transmissive substrate, and to locations of boundary portions between the corresponding lens members. In this method, lens compositions are discharged onto and are caused to land on the light transmissive substrate, and, by drops of the lens compositions, very small lens members or precursors thereof are formed. It is possible to provide a method of producing a transmissive screen, which makes it possible to realize, at a low cost, a bright transmissive screen which has high contrast ratio and which can display a high-quality image having reduced or no moiré and reduced or no speckles.Type: ApplicationFiled: July 16, 2003Publication date: January 22, 2004Applicant: Seiko Epson CorporationInventors: Shoichi Uchiyama, Satoru Miyashita, Hiroshi Kiguchi, Hironori Hasei
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Patent number: 6671014Abstract: A liquid-crystal projection device includes an organic electroluminescent element that is sandwiched by an organic thin-film layer between an electrode layer that reflects light and a transparent electrode layer that transmits light, and a transparent liquid crystal panel that controls passage of light emitted from the surface of the organic electroluminescent element and also includes a half-mirror layer arranged on the side where light is output from the transparent electrode layer. Some of the incoming light is reflected through the transparent electrode layer to another electrode layer and the rest of the light is transmitted the distance between the half-mirror layer. The electrode layer is set to the optical distance of resonance of the light.Type: GrantFiled: December 13, 2001Date of Patent: December 30, 2003Assignee: Seiko Epson CorporationInventors: Osamu Yokoyama, Satoru Miyashita, Tatsuya Shimoda
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Publication number: 20030206408Abstract: An illumination device is provided of the type arranged at the front which is of low power consumption and of high recognisability both when the illumination is turned on and when illumination is turned off. An illumination device arranged at the front face of an illuminated object has a light-guide plate forming a transparent flat plate shape and formed with point-form optical extraction structures on its surface or in a position facing this surface, and a light source arranged opposite and end face of this light-guide plate. The light source is for example a point light source. The optical extraction structures are for example pillar-shaped projections and these are arranged two-dimensionally. The function is provided that, when this illumination device is arranged at the front of the illuminated body, rays are projected on to the illuminated body and rays reflected by the illuminated body are transmitted with scarcely any dispersion.Type: ApplicationFiled: May 8, 2003Publication date: November 6, 2003Applicant: Seiko Epson CorporationInventors: Tatsuaki Funamoto, Osamu Yokoyama, Satoru Miyashita, Kanemitsu Kubota
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Patent number: 6629754Abstract: An object of the present invention is to provide a highly reliable ink jet printer head exhibiting a water-repellent property, low deterioration of ink drop ejection performance, and high friction resistance, along with a method of manufacturing this ink jet printer head. According to the present invention, in the case of an ink jet printer head wherein ink drops are ejected from nozzles formed in a nozzle surface, the ink jet printer head has a metal layer comprising metal formed on the nozzle surface and a self-organized film layer consisting of a polycyclic thiol compound formed on a top of the metal layer.Type: GrantFiled: July 11, 2001Date of Patent: October 7, 2003Assignee: Seiko Epson CorporationInventors: Hitoshi Fukushima, Satoru Miyashita
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Patent number: 6628067Abstract: A white backlight is provided by mixing a plurality of luminous lights with balanced white light, while minimizing power consumption and reducing manufacturing cost. Luminous regions are finely arranged in order to uniformly mix a plurality of luminous colors. A white light is obtained by simultaneously lighting luminous colors in the plurality of luminous regions using a single power source. The shape of the luminous regions is determined for depositing the luminous layers.Type: GrantFiled: February 23, 2001Date of Patent: September 30, 2003Assignee: Seiko Epson CorporationInventors: Hidekazu Kobayashi, Osamu Yokoyama, Satoru Miyashita
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Patent number: 6627364Abstract: A resin composition for producing a color filter by an ink jet system contains (A) a colorant, (B) a binder resin and (c) a solvent having a boiling point of 245° C. or more at normal pressure, wherein the color filter is produced by discharging the above resin composition from an ink jet head into light transmitting regions on the surface of a transparent substrate having banks formed thereon to store the resin composition in the light transmitting regions defined by the banks; forming a pixel pattern by drying the resin composition stored in the light transmitting regions; and forming a protective layer to cover the pixel pattern.Type: GrantFiled: April 26, 2000Date of Patent: September 30, 2003Assignees: Seiko Epson Corporation, JSR CorporationInventors: Hiroshi Kiguchi, Satoru Miyashita, Toshio Nakamura, Tsuyoshi Watanabe
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Patent number: 6621637Abstract: A method of producing a transmissive screen having a structure including light-absorption-material patterns formed on locations corresponding to locations of lens members, which are provided side by side on a light-transmissive substrate, and to locations of boundary portions between the corresponding lens members. In the method, lens compositions are discharged onto and are caused to land on the light transmissive substrate, and, by drops of the lens compositions, very small lens members or precursors thereof are formed. It is possible to provide a method of producing a transmissive screen, which makes it possible to realize at a low cost a bright transmissive screen which has high contrast ratio and which can display a high-quality image having no moiré and no speckles.Type: GrantFiled: February 28, 2002Date of Patent: September 16, 2003Assignee: Seiko Epson CorporationInventors: Shoichi Uchiyama, Satoru Miyashita, Hiroshi Kiguchi, Hironori Hasei
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Patent number: 6607277Abstract: A projection display apparatus employing organic EL elements is presented that is light in weight, is small in size, and can be practically implemented. In particular, the apparatus suppresses light-emission performance degradation caused by generated heat, thereby extending useful life, stabilizing brightness, and securing continual maximum brightness. The apparatus comprises; liquid crystal panels 12R, 12G, and 12B; light emitting units 13R, 13G, and 13B, positioned at the back of the liquid crystal panels and provided with organic EL elements as light emitting layers; and cooling bodies 14R, 14G, and 14B, positioned at the back of the light emitting units, for dispersing the heat generated by the light emitting layers. The cooling bodies 14R, 14G, and 14B may, for example, be electronic cooling elements that employ the Peltier effect to absorb and radiate the generated heat. Alternatively, the cooling bodies may be configured as heat-dispersing fins that guide and disperse generated heat.Type: GrantFiled: July 20, 1998Date of Patent: August 19, 2003Assignee: Seiko Epson CorporationInventors: Osamu Yokoyama, Satoru Miyashita, Hiroshi Kamakura, Tatsuya Shimoda
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Patent number: 6605902Abstract: A display is provided which is constructed with a plurality of display blocks linked together so as to be continuous in the vertical direction. Each display block comprises a display portion having a flat rectangular shape with a plurality of pixels which emit light using organic EL elements, arranged over the entire face in a matrix, and a terminal portion provided continuous with one of the short sides of the display portion for relaying signals or power from the outside to each pixel. Each display block is attached on a transparent substrate via a transparent adhesive so that the long sides of the display portion are contacted and are vertically continuous. The display surface of the display portion (the surface on the side which the emitted light in the organic EL element illuminates) faces towards the transparent substrate side. As a result, the light from the display portion shines from the surface of the transparent substrate to the outside.Type: GrantFiled: July 6, 2001Date of Patent: August 12, 2003Assignee: Seiko Epson CorporationInventors: Tatsuya Shimoda, Satoru Miyashita, Satoshi Inoue
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Publication number: 20030140998Abstract: A multi-piece rim includes a rim base including a first flange and a gutter band, a bead seat band including a second flange, a lock ring, and a first side ring located on a side of the first flange and a second side ring located on a side of the second flange. A circumferentially extending surface of the first flange and a tapered surface of a circumferentially extending inner surface of the first side ring and/or a circumferentially extending surface of the second flange and a tapered surface of a circumferentially extending inner surface of the second side ring are inclined radially outwardly in an axially outboard direction of the multi-piece rim, so that circumferential and radial slippage between rim members is prevented to suppress a fretting fatigue.Type: ApplicationFiled: November 4, 2002Publication date: July 31, 2003Inventors: Kentaro Oba, Satoru Miyashita, Ichiro Takeuchi